ok so freak out over...for now

I have had a call from our fertility doctor (who is also my obstetrician) he thinks that the bleeding was most likely a subchorionic bleed..whatever that is. I have asked for a repeat beta and am anxiously awaiting those results. I feel ok within myself...apart from the tremendous anxiety that has been hanging around all day. I realise now just how much this pregnancy means to me. I feel like we have our life mapped out around this now that it has become fact. Before the results last week we were ambivalent, I was ok if it was negative because we already had a miracle baby from IVF. Now though, I have developed quite an attachment to the idea of being pregnant again. I am not going to get attached to the idea of a baby just yet. This whole extremely scary and upsetting episode has warned me against that. IF this lasts well into the second trimester, I may get attached then but for now, just need to think of this whole thing as a late period. Ugh that sounds awful and heartless but I need to protect myself from being hurt.
I should also point out that in real life, I am nowhere near as much of a drama queen as I am on here. In real life when all of this was going down, I cried a little told my husband and went to bed. (where I cried some more!)I tried to downplay how anxious I was when I spoke to the clinic nurses and doctors so hopefully they don't all think I am neurotic. 
Anyway, I am not 100% convinced this is going to stick. Please, lord I hope so. I really do.