Cold/Flu like symptoms before BFP??

Has this happened to anyone? My husband and I had sex a week ago and he finished in me

I’ve been feeling so nauseous and I almost puked eating breakfast at my favorite place this morning.

I now have a full on cold, stuffy nose and sneezing all over the place

Don’t know if it’s a coincidence or not because my daughter just got over a cold about a week ago too so :///