I am exclusively breastfeeding my 5 month old son. Have had normal periods since I gave birth to him. S/O and I decided to try for girl want them to be close and I’m a stay at home mom. Last aunt flow was 07/29, I am 6 days late already. Could it be aunt flow has stopped coming due to exclusively breastfeeding? I know I am not pregnant as my s/o left out of town for work on 07/25 and last ain’t flow started 07/29.