Mommas with toddlers and currently pregnant

So my toddler has been extra clingy lately since I became pregnant... I try to remind her when sitting with me we have to be careful of the baby and all that but like she still tends to accidentally knee me or elbow me in the stomach with climbing up or down from me... tonight I had like I guess super light browish watery discharge and I'm getting nervous all of a sudden.. I've had two pregnancies before my toddler and one was an ectopic and the send was a miscarriage.. so I'm a bit on edge.. I have been have an achey back today too... I just need some encouragement right now I guess. Trying not to fear and fighting it with prayer and standing on my faith as much as I can but feeling nervous at the same time... prayers please..