3 Dreams in one night!

Sienna ❄️ • 29 years old, trying with hubby for #1. 1st & 2nd pregnancies were ectopic. FET #1 failed.
One was about a black mamba snake in a museum that I got to close to that bit me on the leg three times in one strike. Lol I was pregnant and worried that the venom would hurt the baby but some lady gave me a shot in the butt and said i would be fine. Lol 
And one was like I was watching a movie where there was a war going on but everyone jumped in a bus that turned into a safari boat and cruised through some old ancient jungle ruins (which I think lead to the museum where I got bit by a snake.)
One I was pregnant with (my actual husbands baby) who in my dream was a fling but didn't know until after I married Adam (An actual old crush of mine) but Adam had gone away to war or something... I told my fling (my actual husband) about the baby and he said it wouldn't be right for him to stay so he was going to leave but I really wanted him to stay because I loved him and wanted to be married to him and not Adam. Lol 
Anyway! I'm almost 5 weeks pregnant. And thought it was strange to have so many dreams in one night and wake up remembering them so vividly. Any thoughts?