is this it! ttc after miscarriage in February

Amy
I had a missed miscarriage on February 4. My period returned march 15 and was due again this weekend (at least I believe so if it's back to my normal schedule). I had some spotting but never my period and then started to feeling realy nauseous like I did when I was pregnant. Took these both today, am I seeing things? Could I be pregnant again?